Brake mechanism for mining cars



July 16, 1929. E N, GQlN,v

BRAKE MECHANISM FOR MNING C'ARS Filed June l, 192'? 3 Sheets-SheetInfbentor tto rnqy By @M July 16, 1929. E. N. GolNS BRAKE MECHNISM FORMINING CARS Filed June l. 1927 3 Sheets-Shea?l 2 Inventor Goms,

. 1 mi si By M Atrorny July 16 1929- Ev N. Goms BRAKE MECHANISM FORMINING GARS Inventar Tl/imams,

By @Mw/@ y nnrney Patented July 16, 1929.

PATENT oFFlcE.

EDDIE N. GOINS, OF-MONONGAE, WEST VIRGINIA.

BRAKE MEGHANISM FOR MINING GARS.

Application filed .Tune 1, 1927. Serial No. 195,697.

The present invention relates to an improved brake mechanism especiallyadapted for mining cars and has for one of itsy important objects toprovide a brake mechanism applicable to such cars in such a manner andconstructed in such wise that the brake shoes of the brake bar may beapplied to the wheels incident to the operation of a bumber structurethereby preventing the cars when in a train from crowding upon oneanother, particularly in going down an incline, and thereby doing awaywith a mine operator foreach car. Y

Another important object of the inven` tion aims to provide brakemechanism of this kind applicable to mining cars wherein the bumpers areemployed to actuate the brakes to prevent the cars from crowding oneanother in descending an incline and to operate the same way on a levelgrade,

particularly when a train of cars is being brought to a stop aftertravelling. at a rapid rate `of speed.r With the above and numerousother objects in view as will appearv as the description proceeds, theinvention resides in certain novel features-of construction, and in thecombination and arrangement of parts as will be hereinafter'more fullydescribed and claimed. f

In the drawings: Y

Figure 1 is a side elevation of a mining y car embodying the features ofmy invention,

Figure 2 is a front elevation thereof partly in section,

Figure 3 is a rear elevation thereof,

Figure 4 is a top plan view thereof,

F igure is a bottom plan view thereof,

Figure 6 is a detail vertical longitudinal section taken substantiallyon the line 6 6 ofFigure4,"` y

Figure 7 is a sectional viewtaken substantially on the line 7--7 ofFigure 4, v

Figure 8 is a longitudinal vertical section taken substantiallyon thelin'e`8-8 of Figure 4,

Figure9 is a perspective view of one of the brake shoes,

Figure 10 is a perspective viewkof onekof the brake shoes operatingrods.

Referring to the drawing in detail it will be seen that the numeral 5denotes the body of themine car mounted on wheels 6 in the usual wellknown manner. The rear end of the body 5 has a tail gate V7 heldin placeby arms 8 pivoted'at 9 and engageable in keepers 10 and having pin `andslot connections 11 with a manipulating rod 12 so that the tail gate maybe released for dumping purposes when desired. On each side of the body5 there is rockably mounted an arm 14 and an arm 15 the former -at therear of the car and the latter at the front thereof. The latter arm 15is pivoted intermediate its ends. Brake actuating rods 16 are connectedwith the upper ends of the arms 14 and 15 and extend toward each otherand support brake shoes 17 by means 18 or in any other suitable manner.A bracket 19 projects outwardly from thecente'r of each side of the bodyand' then is curved upwardly and has fulcrumed on the upper end thereofa lev'er 2() with the opposite extremities of which are pivotallyengaged the rods 16. These rods 16 see Fig. 10 have horizontal oifsetends 21 for engaging the arms 14 and 15 and depending odset ends 22y forengaging the lever 20. Thus 'it will be seen that lthe shoes will movein opposite directions in unison so as to be applied to .the front andrear wheels simultaneously and to be released therefrom simultaneously.A casing 24 is mounted at the frontV of the body 5 andvhas the shank 25of a bumper 26 slidable therein and pressed outwardly normally by aplurality ofv springs 28 which are engaged in a cross piece 29 mountedon the front axle of the wheels 6 as is clearly illustrated in Figure 8.Lugs 3,0 project laterally from the shank 25 clearly shown in Figure 1.Thus it will be seen thatlif the car abuts the car in front of the samethe shank 25 is moved rearwardly in the housing or casing 24 against theten# sion of the'springs 28 and will rock the arms 15 to apply the brakeshoes 17 through the operation of the brake rods 16 and the levers 20.

Apair of pawls 33 are pivotally mounted in brackets 34 rising from theforward end of the casing 24 and engage in notches 35 to prevent theshankv 25 from sliding inwardly of the casing 24. A pawl 36 has a hookend'37 shown clearly in Figure 8 and engagesrwith a longitudinal seriesof ratchet teeth 39 on the shank 25 for preventing the outward movementof the shank when the same has once been pushed in. This pawl 36 tend tothe rear corners where they are cle-- tachably hooked as at 4G. Each ofthe cables 42 and 43 have branches 47" and 484 respectively trained overa bar GQ mounted` on the body ot the car 5 and leading to the forwardcorners oi' the car and detacliably hooked in engagement therewith as at49,. t will thus be seen that either the 'pawls 33 or the pawlBG' may bereleased to an 1nop erative position by manipulating or pulling upon theproper cable 42 or 43 respectively.

@n the front oil" the car body 5 there is pivotedlintermediate ends asat`50 a lever 51 having a detent 52 engageable with the notchedquadrant' 53; Chains 55 are engaged with' the lever 51 one to each sideof the pivot 50 and engage with the two arms 15 at their upper ends sothat the brakes may be. applied by manipulating the lever 51 whendesired. y

The cables 42 and 43 have their ends and the ends ot their respectivebranches released, when it is desired to have the pawls controlledthereby active. a train of the cars is descending down a hill, pawls33'will loevraised by hooking the end of the cable 42 as at 46 or theend ot its branch 47, as at 49, and the pawl 36 is raisedto a releasedposition by hooking the end ot the cable 43 andthe vend of its branch 48in the same manner. rl`hus, as the cars tend to crowd one another, thebumper will be actuated rearwardly so that the shank 25 moves in thecasing 24', to actuate the brakes. It a car is allowed to coast until itbumps into another stationary car, the cable 43 and its branch 48 wouldbe unhookedas at 46 and' 49 respectively, so that when the shank'of thebumper is` moved iiiwardly to set the brakes, said brakes will bemaintained 1n the set' position. When backing up av train ocars, thepawls 33 are allowed to engage in the notchesV` 35, by releasingthe endsof the cable 42 and its branch 47, therebypreventing the actuation oitlthe brake mechanism because the bumper shank cannotl inove` inwardly ofthe casing 24.

It is thought that the constructioinoperation, utility, andyadvantagesof this invention will now be clearly understood withoutl amore: detailed' description thereof. It will be seen that. the structureexceedingly sini le and com )act and convenient in its arrangement' sothat it is capable ofy easy and ready manipulation and control.

T he presentembodiment of' the invention has been disclosed in detailmerely by way of enample sinceA in actual, practice itattains thefeatures ct'iadvantage enumerated' ask de sira'blein the statement ofthe invention and theabove description. It will bef apparent thatchanges in the details of construction and the combination andarrangement of pants may,v beA resorted; towithout departing' from thescope ot the invention as hereinafter claiinedhon sacrificing any of itsadvantages.

Having'thus described my invention, what I claim as new is: i

l! In combination, a car body, wheels supporting the' body; a pluralityvot brake shoes jloir the wheels, means for actuating and supporting thebrakesl'ioes sotliat they may be appliedE simultaneously, said meansbeingactuatable bya. pair'ot arms, a casing4 on the bod'y, a bumperhavinga shankslidable in the casing,'mean`s on the shank engageablewitlr the arms so' that when the shank is kmoved in' one direction saidEarms are actuated to operate-the' actuatingbrake means, spring `means,:tor normally holding' the shankv extending `outwardly of' the' casing,a pawl, meansv` for" pivotally mounting the pawl, shank providedl,withvva notch. with which thepawl4 is engageable to hold:A the shank outwardlyand prevent the in'- wardA movement thereof; al cable attaclied to thepawl/I for releasing-thefsame,Lal second" pawlv pivoted on the casing,said shlank'liav# ingA ratchet' teeth, said pawl:` last mentioned havinga hooked end engageable with" said ratchetteeth to prevent the outwardmove` ment of` the shank by the spring afterihaving beenpushedinwardly', acabie for-re"- leasing" the second pawl, said cablesbeing4 trained: through the bottom of the body and having detachablehook means engageable with the corners tliereofi 2. In combination, acar body, wheels'supporting thebody, a plurality'offbiake"'slloes forthe wheels, `means `for actuating and supporting the brake'slioessothatfthey'may be appliedV simultaneously, saidimeans being actuatable bya pair of arms, a casingron the body,` a bumper *having-a shankslidallle in the casin`g`meanson the shank engageable with the,armssotliat-. when tliesliank is movedl in one direction said arms areact'uatedto operate the actuating brake means, spring means for,normally holding; the

shank extending outwardly oliithe casing, a

pawl', means for pwi'votallyr mounting the pawl, said shank providedwith anotch with which the pawl is engageabl'eto lioldE the shankoutwardly and prevent the inward movement tliereot, al cable` att-achedto the pawl for releasing the same, al second pawl pivotedAv on thecasing, said lshanlnhavf ing ratchet teeth, said'V pawl last'mentionedhaving aA looked end engageable'fwitlr said ratchet teethtopreventthe'outward move-y ment` of the shankv by thespr-ing-` after hav-y ingbeen' pushed inwardly, a cable fory rel` leasing. the vsecondi pawll,said* cables being trained through tliebottom of the body and llt) 'body,

having detachable hook means engageable with the corners thereof, at therear of the car, and branches on the cables having detachable meansengageable `with the forward corners of the car.

3. In combination, a car body, wheels supporting the body, a pluralityof brake shoes for the wheels, means for actuating and supporting thebrake shoes so that they may be applied simultaneously, said means beingactuatable by a pair of arms, a casing on the a bumper having a shankslidable in the casing, means on the shank engageable with the arms sothat when the shank is moved in one direction said ated to operate theactuating brake means, spring' means for normally. holding the shankextending outwardly of the casing, a pawl, means for pivotally mountingthe pawl, said shank provided with a notch with which the pawl isengageable to hold the arms are actushank outwardly and prevent theinward movement thereof, a cable attached to the pawl for releasing thesame, a second pawl pivoted on the casing, said shank having ratchetteeth, said pawl last mentioned having a hooked end engageable with saidratchet teeth to prevent the outward movement of the shank by the springafter having been pushed inwardly, a cable for releasing the secondpawl, said cables being trained through the having detachable hook meansengageable with the corners thereof, at the rear of the car, andbranches on the cables having de: tachable means engageable with theforward corners of the bar, and manual means for operating said brakes.

In testimony whereof I aflx my signature.

EDDIE N. Goms.

bottom of the body and A

